ORGANIC CARBON CYCLE IN THE ULLEUNG BASIN SEDIMENT, EAST/JAPAN SEA SCIE SCOPUS

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Title
ORGANIC CARBON CYCLE IN THE ULLEUNG BASIN SEDIMENT, EAST/JAPAN SEA
Author(s)
Lee, T.; Jung, S. K.; Kim, K. H.; Lee, S. H.; Son, Y. B.
KIOST Author(s)
Lee, Taehee(이태희)Kim, Kyeong Hong(김경홍)Son, Young Baek(손영백)
Publication Year
2019-07
Abstract
Organic carbon (OC) fluxes in the Ulleung Basin (UB) sediments, East/Japan Sea (E/JS) were investigated through geochemical analyses and sediment chamber experiment. The UB sediment has high organic carbon contents of over 2% and the mean C/N molar ratio is 7.09, therefore suggesting that the organic matter deposited in the UB is predominantly of marine origin. Apparent sedimentation rates (ASR) calculated from excess Pb-210 activity distribution, ranged between 0.036-0.047 cm year(-1). The mass accumulation rates (MAR) calculated from porosity, grain density (GD) and ASR, ranged between 131-184 g m(-2) year(1). Input fluxes of OC (IF) and burial fluxes of OC (BF) varied between 7.89-11.08 and 2.02-3.10 gC m(-2) year(-1), respectively. Regenerated fluxes of OC (RF) estimated with oxygen consumption rate, varied between 6.22-6.59 gC m(-2) year(-1). However, the RF calculated by subtracting BF from IF, varied between 5.87-7.98 gC m(-2) year(-1). The proportions of the IF, RF, and BF to the primary production (177.1 gC m(-2) year(-1)) in the UB were about 5.4%, 3.9%, and 1.5%, respectively. These proportions were over 5 times higher than the average of world open ocean. Based on these results, the UB appears to play an important role in the deposition and removal of organic carbon in the E/JS.
ISSN
1589-1623
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/758
DOI
10.15666/aeer/1705_1216512179
Bibliographic Citation
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH, v.17, no.5, pp.12165 - 12179, 2019
Publisher
CORVINUS UNIV BUDAPEST
Keywords
particulate organic carbon (POC); input flux of organic carbon (IF); regenerated flux of organic carbon (RF); burial flux of organic carbon (BF); Ulleung Basin (UB)
Type
Article
Language
English
Document Type
Article
Publisher
CORVINUS UNIV BUDAPEST
Related Researcher
Research Interests

Seawater Chemistry,Geochemistry,해수화학,지화학

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